With a two-layer foam construction, the Dog Orthopedic Bed by Petmaker is designed with comfort in mind. The dog bed for crate features an insert with a 2-inch layer of memory foam at the base of the dog mattress and another 2-inch-thick layer of high-density foam that can support pets weighing up to 20-pounds. Dogs and cats in perfect health as well as those who suffer from arthritis, muscle stiffness, joint and hip dysplasia will love this durable dog bed. The attractive dog crate bed comes with a plush orthopedic dog bed replacement cover topped with warm and fuzzy Sherpa fabric, a non-skid backing, and a wraparound zipper so it can be removed for easy cleaning as needed. Note: The Dog Bed Pad and Washable Bed Cover May be Shipped in Separate Packages.